Wire switch



April 14, 1925.

H; w. GQFF Y WIRE SWITCH Filed May 11, 1922 IIIIIIIIIIIIIIHIII HIIIIIIIIIIIIIIIII Apr-i114, 1925.

1,533,179 H. w. GOFF WIRE SWITCH Filed May 11, 1922 Shaetsi-Sheqt 2 3 53 M lg April 14, 1925;

, H. W. GOFF WIRE SWITCH s Sheotsi-Sho'at s Fild May 2 Patented Apr. 14., 1925.

UNITE res 1,533,179 PATENT OFFICE.

HAROLD W. GOFF, F NEVT YORK, N. Y., ASSIGNOR T0 \VESTERN ELECTRIC OOMIPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

WIRE SWITCH.

v Application filed May 11,

To all whom it may concern:

Be it known that I, HAROLD W, Gorr, a citizen of the United States, residing at New York, in the county of New York,

State of New York, have invented certain new and useful Improvements in Wire Switches, of which the following is a full,

clear, concise, and exact description.

This invention relates to telephone switch- 1 ing devices, and more particularly to switching devices of the coordinate type in which connection between a plurality of sets of conductors is effected by means of the conjoint operation of relatively movable bars 1;": coordinately disposed to one another, with which the sets of conductors are associated.

This invention is particularly adaptable to a switching mechanism of the general character disclosed in British patent to Western Electric Company, Limited, No. 182,486 accepted June 28, 1923. Reference may also be had to British Patent No. 183,438 to Western Electric Company, Limited, ac cepted September 6, 1923, for certain operative details not specifically described hereinafter. However, it is understood, that the invention is not to be limited to the types of switches disclosed in the above mentioned British patents, but may equally well be employed in switches serving for 6 other purposes as will be apparent to those skilled in the art.

An object of this invention is to insure a wiping engagement betweenany two sets of contacts, thereby effecting a good electrical connection between incoming and outgoing telephone lines associated with the respective sets of contacts.

In accordance with the general features of this invention, several forms of which aredisclosed on the drawing, an operating card for each set of active contacts is mounted in such a manner that when the card is operated it deflects along a line angular to the passive contacts, thereby causing the active contacts to move into engagement with the passive contacts with a wiping motion.

Various arrangements for accomplishing the foregoing object are disclosed in the accompanying drawings in which Figs. 1 and 2 show respectively the front and side views of a section of a coordinate switch embodying one form of this invention. Figs, 3 and 5, and Figs. 4 and 6 show respectively 1922. Serial No. 560,068.

front and side views of sections of coordinate switches, wherein the object of this invention is accomplished by various mechanical changes in the structure of the switch, which will hereinafter be described.

A complete understanding of the invention will .be had from the following description and by reference to the accompanying drawings, in which similar reference characters designate similar parts throughout the several views.

The underlying principle involved in the operation of the several switches disclosed in the drawing, is the same for each switch, so that a complete description of the operation of the switch shown in Figs. 1 and 2 will enable anyone skilled in the art to set up and operate switches embodying the features of this invention. Thefeatures wherein the switches disclosed in Figs. 3 and 4, and Figs. 5 and 6 differentiate from those disclosed in Figs. 1 and 2 will also be pointed out and described.

Coordinately' disposed bars 1 and 2 are shown adapted to be operated by magnets 4 80 and 3 respectively. Sets of passive conductors or contacts 5 are mounted on a main switch frame in any desirable" manner, and are perpendicularlylocated with respect to the contacts 9. Micarta cards 6 mounted on obliquely disposed flat springs 27 are provided with a series of vertical apertures 8 which accommodate the active conductors 9. Permanently located on each of the bars 1 is a spring or wire projection 10 which communicates with a slot on the lower end of the card 6 upon actuation of bar 1. Opera-ting members 11 securely mounted on bars 2 are each provided with a V-shaped flange which is adapted to engage the spring 10 upon the operation of bar 2, subsequent to the operation of bar 1. Means for insulatively mounting the contacts 9 and supporting the springs 2'7, is provided by the insulating member 12.

A complete cycle of operation of the switch disclosed in Figs. 1 and 2 will give a clear understanding of each part and the 6 functions thereof, and at the same time will suflice to disclose the operation of the switches shown in Figs. 3 and 4, and Figs. 5 and 6. V 7

With the switches in normal condition, the cards 6 and their associated parts will assume positions as shown in the upper left 110 section of Fig. 1. The lower right section of Fig. 1 shows a connection between sets of active and passive conductors 9 and having been etl'ected and the following description will show how this connection is accomplished.

The lower rightmagnet 1 (reference made to Figs. 1 and 2 throughout this description) is energized from any suitable source and attracts its armature 13, which is securely fastened to bar 1. This causes the bar 1 to rotate, carrying the pin or projection over the member 11 into the slot in the card 6. This operation will likewise position all or the pins 10 associated with the operated bar 1 in the slots in the corresponding cards 6', thereby placing them in operable positions with respect to members 11. Depending uponthe connection desired, one of the magnets 3' will be operated. In the case at hand, the lower magnet 3 is operated and attracts its armature 1 1, to which bar 2 is permanently attached. This action causes the rotation of bar 2. The operation of bar 1 places pin 10 in such a position that it will be jengaged by the V-shaped groove in menu ber 11 upon the actuation of bar 2; The operation of bar 2 causes member 11 to engage the pin 10 and force the card 6 associatedwith this pin upwardly. This operation causes the active contacts 9 to engage the passive contacts 5 as shown in the lower right section of Fig. 1. The card 6 is mounted on obliquely disposed springs 27 which when flexed upon the actuation of bar 2 give a si'dewise motion to the said card, thereby causing wiping engagement between the active and passive contacts.

The operation of the switch disclosed in Figs. '3 and at is fundamentally the same as that ofthe switch described above. The switch disclosed in these figures is provided with an auxiliary member which is provided with a series of lugs or cams 16, one cam for each member 11. These cams are so shapedas to engage the members 7 tending from card 6 upon its upward movement; thereby forcing the card 6 in a diagonal direction. In this manner the wiping of contacts 5 and 9 is effected.

In Figs. 5 and 6, the bars 2 are provided wit-h lips or projections 18 which engage the springs or pins 10 associated with bars 1. The pin 10 is normally held in engagement with the side 01 card 6, so that when the operation of bar 1 places this pin in operable relation with projection 18, and bar 2 is moved laterally by the operation of a magnet 3; the card 6 is given a sidewise movement, Notches 17 in the members 15 are so formed to accommodate the springs 7 on which the card 6 is mounted, and act as guides therefor, causing a diagonal movement ofthe card 6 upon the operation of bar 2. The diagonal movement of card 6 causes the wiping engagement between the active and passive conductors as in the two instances previously described.

It is evident that the displacement of the cards carrying the active contacts may be accomplished in numerous ways without departing from the spirit of this invention.

i' hat is claimed is:

i. in a switching mechanism, a set 0i passive contacts, a plurality of sets of active contacts, a .QIDbEl" con'inion to said active contact sets for preparing them for selective operation, a plurality of members each associated with a corresponding one of said sets of active contacts for actuating the same. the means for individually moving said last-mcntioned members longitmlinally and. laterally, eilecting a wiping en age-- i'nentbetween said passive contacts and one or? said sets of active contact-s. H r

2. In a switching mechanism, a setof passive contacts, a plurality of sets of active contacts, a plurality of menibers, each associ'ated with as'et of active contacts, operating bars common to a plurality oi' said n'ien'ibers, and means cooperating therewith to more said members longitudinally and laterally, causing a wiping engagement between said passive contacts and one of said sets or active contacts. 7

3. In a switching mechanism, a set of passive contacts, sets of active contacts, a plurality of members, each associated with a set of active contacts, electromagnetic means common to a plurality or said members, and means coa'cting with said last mentioned means to move said members individually both longitudinally and laterally, eliecting a wiping engagement between said set of passive contacts and a set of active contacts.

1:. In a switching mechanism, sets ofpassive contacts, sets of active. contacts, a plurality of members, each associated with a set of active contacts, means common to said members for preparing them for operation, and means c'oa'cting with said last mentioned means for individually moving said members both longitudinally and laterally, thereby eiiecting a wipingengagement between one or" said sets of passive contacts and one of said sets of active contacts.

In a switching mechanism, sets of active and passive contacts, coordinately disposed bars associated with said sets of contacts, a plurality oi cards, each associated with a set ot' active contacts, and means for displacing said cards both longitudinally and la' erally upon the conjoint operation Off said bars, whereby a wiping engagement is effected between said sets of active and passive contacts.

(3. In a switching mechanism, a set of passive contacts, a plurality of sets of active contacts, members rigidly motmt'e'd on said rubbing action between said active contact and said passive contact.

8. In a switching device, a passive contact, an active contact, a flexible member for normally maintaining said active contact out of engagement with said passive contact, and means for moving said flexible member to allow said active and passive contacts to interengage and for thereupon torsioning said flexible member'to produce a rubbing action between said'active and passive contacts. I

9. In a switching device, a passive contact, an active contact, a flat spring for normally maintaining said active and passive contacts out of engagement, and means for moving said spring to allow said active and passive contacts to engage and for thereupon torsioning said spring to produce a rubbing action between said active and passive contacts.

In witness whereof, I hereunto subscribe my name this 6th day of May A. D., 1922.

HAROLD 'W. GOFF. 

